Performers would come to a studio where they received a cubicle, coaching, and cash incentives to keep callers on the line longer.
The editor of High Society magazine, Gloria Leonard, is credited with being one of the first people to use "976 numbers", then "900 numbers" for promotional purposes and soon as a revenue stream in the adult industry.
Leonard recorded her own voice informing callers of the contents of the next issue of High Society magazine before its publication.
Leonard herself was surprised at the success of these numbers.
Originally phone sex services consisted of a managed network of dispatchers (live or automated) and erotic performers.
Phone sex conversation may take many forms, including: guided fantasy, sexual sounds, narrated and enacted suggestions; sexual anecdotes and confessions; candid expression of sexual fantasies, feelings, or love, and/or discussion of very personal and sensitive sexual topics.